In a right angled triangle the square of the long side is equal to the sum of the squares of the other two sides.

It is stated in this formula:

**a ^{2} + b^{2} = c^{2}**

Note: the long side is called the hypotenuse.

It is stated in this formula:

**a ^{2} + b^{2} = c^{2}**

Note: the long side is called the hypotenuse.

../geometry/images/triangle-q.js?mode=hyp

See: Hypotenuse

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